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Acta Aeronautica et Astronautica Sinica ›› 2025, Vol. 46 ›› Issue (15): 231532.doi: 10.7527/S1000-6893.2025.31532

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles    

Application and development prospects of electrical impedance imaging in aerospace structural health monitoring

Guoqiang YU1(), Siyuan HAN1, Xiguang GAO1, Yingdong SONG1,2   

  1. 1.College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
    2.Harbin Engineering University,Harbin 150001,China
  • Received:2024-11-13 Revised:2025-01-13 Accepted:2025-01-21 Online:2025-02-10 Published:2025-02-10
  • Contact: Guoqiang YU E-mail:ygq@nuaa.edu.cn
  • Supported by:
    National Natural Science Foundation of China(12202186);China Postdoctoral Science Foundation(2024T171160)

Abstract:

Electrical impedance imaging technology, an emerging damage monitoring technique, is deemed highly promising in aerospace structural health monitoring, owing to its non-invasive nature, rapid response, and simple equipment setup. This article first reviews the developmental history of electrical impedance tomography algorithms and summarizes the significant achievements made in recent years, both domestically and internationally, in forward problem modeling, regularization, and inverse problem solving. Then, a systematic summary was conducted on the damage monitoring applications of EIT technology for resin-based, ceramic-based, and other functional materials commonly used in the aerospace field. The existing feasible electrode array arrangements and excitation schemes for three-dimensional structures using EIT technology were also summarized. Finally, the existing technical problems of electrical impedance tomography technology were pointed out, and the future development direction was discussed.

Key words: aerospace structures, structural health monitoring, electrical impedance tomography, non-destructive testing, compressive sensing

CLC Number: